Vehicle head lamp



Nov. 22, 1927.

1,650,501 H. B. DON LEY VEHICLE HEADLAMP Filed Feb. 17. 1926 2Sheets-Sheet l Nov. 22, 1927. 1,650,501

H. B. DONLEY VEHICLE HEADLAMP Filed Feb, 17, 1926 2 Sheets-Sheet 2Patented Nov. 22, 1927. i

PAT NT orries.

nanonn B. Donner, or connivisns, OHIO, AsjsIeNon ro rnn JOHN w. BROWNMANU- rac'rnnrns- COMPANY, or COLUMBUS, orrro, a con-rona'rrou or onro.

: v'nmcztn HEAD LAME? A iic afipn filediFebruary 17, 1926. Serial No.88,899.

This invention relates to improvements in motor vehicle head lamps, andis especially directed to head lamps of thetype employing gas burners aslight sources or, in other words lamps using acetylene gas to create alight source rather than electrically energized incandescent filaments.

It is the principalobject of the lpresent invention to provide a vehiclehead lamp of the gas burner type with an improved combined supportingbracket and ventilating hood, by means of which the lamp body may besecurely and stationarily supported in an operative position upon theframe of a motor vehicle and at the same time to pro vide a means forpermitting of the circulation of air through the body of the lamp so asto promote combustion and yet to form said bracket so that the inlet ofair would be accomplished in a gradual, slow flowing manner devoid ofhigh velocity cur-- rents which wouldhave a tendency to interfere withthe gas combustion taking place at the burner.

Another object of the invention rests in providing a lamp of the abovecharacter with a plurality of ventilating openings in the bottom thereofat points adjacent to a gas burner, and in extending the lamp supporting bracket to provide hoods or extensions which covers saidopenings sons to provide for a control and regulated inflow of air intoand through the body of the lamp.

lVith these and other objects in view, as will appear as the descriptionproceeds, the invention consists in the novel features of construction,combinations of elements and arrangements of parts hereinafter to befully described and pointedout in the ap pended. claim. 1

In the accompanying drawing:

Figure l is a side elevation'of a motor vehicle head lamp constructed inaccordance with the present invention,

Figure 2 is a vertical longitudinal sectional view taken on the planeindicated by the line 22 of Figure 1, s

Figure 3 is a transverse cross-sectional view on the line 3-3 of Figure1, and

Figure 4 is a sectional view disclosing a slightly modified form of theinvention.

Referring more particularly to. the drawings the numeral 1 designatesthe metallic casing or body of a vehicle head lamp, the

brackets 7.

s'amebeingforinedto comprise the usual annularside wall 2, a back wall 3and an open front which is closed normally by the customarylens ring 4;and its associated lens. The back wall has connected therewith aforwardly facing concave reflector 5 before which is positioned a burner6 of the type adapted for the burning especially of acetelyne gas. Theburner is supported fromthe bottom of the wall 2, and is maintained inan upright position ,by guide 1 7 Gas may be introduced into tne burnerby a hose or tube 8 extending from any suitable source, and in the formof the invention disclosed in Figures 1 to 3, the burner isadjustable.longitudinally bytheca-sing. The top of the casingis providedwith a ventilated hood l0, permitting of the escape of heated gases fromthe lamp, as is customary.

The wall 2 on opposite sides of the burner 6 and the lower part of thelamp is provided means of the screw 9 located. exteriorlyof with aplurality of ventilating openings 11 to allow air to enter the lamp fromthe bottom of the latter and to supply the burner with necessary oxygento promotecombustlon. The present invention consists in providing a lampof this character with a fixed supporting bracket designated in itsentirety by the numeral 12. This bracket consists of a sheet metalstamping formed to provide a cylindrical portion 13, arrangedimmediately beneath the bodyl in depending relation with respect theretoand provided with a centrally disposed opening for the accommodation ofthe shank 1 1 of a securing bolt, used in connecting the lamp with theframe 15 of a vehicle upon which the lamp is mounted, the headed upperend of the bolt being received within the confines of the tubularportion 13 of the bracket. Further, the bracket is formed to provide anintegral arcuate wall 16, which is riveted or otherwise secured to thewall 2 as at 17 so as to unite the body of the lamp in connection withsaid. bracket. As shown, the wall 16 is bent outwardly to produce hoodsor baffles 18, which pass over and are spaced from the openings 11 inthe casing of the lamp, and the outer ends of the wall 16, after formingthe hoods or bafiies 18, are then bent inwardly to again engage the wall2 and are rivetedor her ise fastened to the latter as at 19.

By this construction it will be seen that there provided in connectionwitha gas burning motor vehicle lamp a supporting structure whichincludes a means admittingof the seeure fastening of a lamp casing inconnection with the frame of a vehicle and lamp; "Thisconstrn'ctionprovides for a uniform and even rate of combustionby which a steady andunfiieker-ing light is produced, as Well as a lamp-support ot'markedmechanieal strength; 4

In the form of the invention disclosed in Figure '4 the Fastening screw20 'is-othollow form and is in directcommunication with the burner 21,in order that the gaseous fuel may passthrough the screw 20 and bedelivered to the burner for combustion purposes.

lVhat is claimed is:

In a vehicle head lamp, a casing, a gas burner-mounted Within saidcasing, said casing being provided with ventilating openings in-thebottom thereof, a supporting bracket secured to the under side of saidcasing and provided with integral hoods arranged to cover said openings,and a fastening niemher depending axially from said bracket and providedwith a gas conveying passage leading to said burner.

In testimony whereof I aflix my signature.

HAROLD B. DONLEY.

